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2010-02-18T14:04:53+01:00
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dane: v=25km/h = 6,945m/s, d=26cali = 26cali*2,54cm/cal = 66,04cm
r = d/2 = 33,02cm = 0,3302m t=1min=60s,
szukane: n

n = s/[2pi*r] = vt/[2pi*r] = 6,945m/s*60s/[6,28*0,33m] = ok. 201obrotów

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